Dustproof mechanism and construction site fingerprint punch-card machine

The utility model discloses a dustproof mechanism and a construction site fingerprint punch-card machine, the dustproof mechanism and the construction site fingerprint punch-card machine provided by the utility model comprise a turning cover, a guide rail and a moving block arranged on the guide rail in a sliding manner, and a brush body is movably inserted on the moving block; and the transmission mechanism is used for driving the moving block to move on the guide rail when the flipped cover swings. According to the dustproof mechanism and the construction site fingerprint punch-card machine, the structure is simple, operation is convenient and fast, the brush body can clean the fingerprint window through the action of the turning cover, the problem that dust is left on the fingerprint window, and consequently fingerprint recognition errors are caused is avoided, and meanwhile the work of cleaning the fingerprint window is omitted. 本实用新型公开了一种防尘机构及工地指纹打卡机，本实用新型提供的一种防尘机构及工地指纹打卡机，包括翻盖、导轨以及滑动设置于所述导轨上的移动块，所述移动块上活